When persistent joint pain strikes, the search for answers often leads to a crucial diagnostic tool: the rheumatoid factor test. This relatively quick blood analysis serves as a window into the immune ...

September 7, 2012 — Elevated rheumatoid factor (RF) levels in healthy patients may be a strong predictor of future rheumatoid arthritis (RA), according to data from a prospective cohort study ...

Self-reported rheumatoid arthritis and positive rheumatoid factor were found to be associated with a difference in mental health, sleep, and cognition. Findings highlight the significance of ...

Antibodies to peptides not currently used for rheumatoid arthritis (RA) diagnosis helped identify patients with untreated early disease that conventional biomarkers missed, researchers said. Almost ...

Medically reviewed by David Ozeri, MD Key Takeaways Rheumatoid arthritis (RA) affects joints but also eyes, lungs, and other ...

The air where you work could be increasing your risk of developing rheumatoid arthritis, a new study suggests. Breathing in the fumes from commercial vapors, gases and solvents -- and even common ...